Lenovo X250 M.2 Slot
This package updates the UEFI BIOS (including system program and Embedded Controller program) stored in the ThinkPad computer to fix problems, add new functions, or expand functions as noted below.
In this guide, I’ll be taking apart a Lenovo ThinkPad X250 in order to access and upgrade the hard drive, SSD and RAM.
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1. Removing the bottom cover
The laptop comes with a 16GB 2242 M.2 SSD. My new M.2 2242 is Transcend MTS400 SATA3 M.2 SSD. By the way, Plextor M6G is also compatible the Lenovo ThinkPad X250. Remove the screw and take the SSD out of its slot. Install the Transcend MTS400 SATA3 M.2 SSD into the slot. Upgrade the hard drive and 2.5″ SSD. Thing is that not all m.2 SSDs have the same PHYSICAL size. The slot in the x240 for example fits the m.2 2242 form factor. I think that the x250 should have the same since the dimensions are not different. So lookout for the form factor when buying one of them. X260 does not support any kind of M.2 SSD. The PCIe NVMe SSD used in T460/X260 is a 2.5' SATA Express PCIe 3.0 x2 256 GB SSD, which is not yet available. Description THINKPAD X250 ULTRABOOK; Processor: 5th Gen Intel® Core™ i3-5010U Processor (3M Cache, 2.10 GHz) 5 5th Gen Intel Core i5-5200U Processor (3M Cache, 2.2GHz), Turbo Boost 2.0 (2.7GHz) 5.
First of all, unlock and remove the battery.
Remove eight screws securing the bottom cover to the laptop.
Remove the SD card tray from the laptop.
Here’s the SD card tray.
There are seven clips securing the bottom cover to the body.
You can release the clips with a guitar pick.
Once all clips were released, you can remove the bottom cover.
2. Upgrade the M.2 SSD
Under the bottom cover you can get access to the following internal components:
– Hard drive
– RAM module
– M.2 SSD
– Internal battery
– Heat sink and Cooling Fan
– Wireless card
– Speaker
The laptop comes with a 16GB 2242 M.2 SSD. My new M.2 2242 is Transcend MTS400 SATA3 M.2 SSD. By the way, Plextor M6G is also compatible the Lenovo ThinkPad X250.
Remove the screw and take the SSD out of its slot.
Install the Transcend MTS400 SATA3 M.2 SSD into the slot
3. Upgrade the hard drive and 2.5″ SSD
Lenovo X250 M.2 Slot Ssd
The laptop comes with a Seagate 500GB 7200RPM, and you can upgrade to a larger capacity hard drive, or replace it with a 2.5″ SSD.
Lenovo X250 M.2 Slot Drivers
In my case, I replace it with a 2.5″ Samsung 850 EVO 250 GB SSD.
4. Upgrade the RAM
Lenovo X250 M.2 Slot 2280
The Lenovo ThinkPad X250 comes with an 8GB DDR3L-1600MHz RAM. It has to meet my daily needs, so I did not upgrade the memory, but a user has been upgraded to 16GB, and can be used normally, please see this thread from Lenovo forum.